What does the abbreviation UTC stand for in aviation?

In aviation, the abbreviation UTC stands for Coordinated Universal Time. This is the time standard that serves as the basis for civil timekeeping worldwide. It is crucial in aviation because it provides a uniform reference that helps in flight coordination across different time zones. All international flights and aircraft communications use UTC to avoid confusion due to local time variations. By using UTC, pilots and air traffic control can synchronize their operations with precision, which is especially important for flight safety and scheduling.

The other options do not accurately represent the recognized time standard used in aviation. For instance, Universal Time Code, Uniform Time Control, and Universal Calibration Time are not established terms in this context, making them less relevant for understanding aviation timekeeping protocols.